401(k) · DOL Form 5500 · 2023

Williamsmarston LLC 401(k) Plan

Data updated 2026-08-25

$20M
Total assets Small plan by assets
278
Participants Below avg headcount
73rd
Percentile by assets National rank
$73,178
Avg per participant Below avg balance/head
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Official DOL plan name: Williamsmarston LLC Retirement Plan · Sponsored by Williamsmarston LLC · Massachusetts · Professional & Technical Services

$20M in assets, 278 participants

Williamsmarston LLC's Williamsmarston LLC Retirement Plan reported $20M in total assets and 278 participants in its 2023 DOL Form 5500 filing, ranking in the 73rd percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #14,805 in Professional & Technical Services (20,321 peers)

Coverage in Massachusetts

Williamsmarston LLC Retirement Plan covers 278 participants in Massachusetts, about 42% of the average Massachusetts filer (state average ~659 per filing). Assets: $20M.

#14,805
in Professional & Technical Services (20,321 peers)
+94.7%
assets growth YoY

Williamsmarston LLC Retirement Plan's outsized position by total assets

Williamsmarston LLC Retirement Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$20,343,431 Top 27% higher than 73% of 127,068 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023

Williamsmarston LLC Retirement Plan among mid-size filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Williamsmarston LLC Retirement Plan sits mid-pack in the medium band (278 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Williamsmarston LLC Retirement Plan reported net income rose from $2M in the plan year 2022 filing to $6M in the plan year 2023 filing.
  • Williamsmarston LLC Retirement Plan reported participants rose from 133 in the plan year 2022 filing to 278 in the plan year 2023 filing.
  • Williamsmarston LLC Retirement Plan end-of-year assets rose from $10M in the plan year 2022 filing to $20M in the plan year 2023 filing.

See the national 2022→2023 release diff →

Plan-year Form 5500 strip

Filing strip 464311251 · Williamsmarston LLC PY 2023 · 401(k)

Williamsmarston LLC Retirement Plan · $20M · 278 · 73rd

  • PART $20M
  • PART 278
  • PART 73rd
  • PART 401(k)
  • PART near Sayres and Associates LLC 401(k) Retirement Plan
  • PART ind #14805

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Professional & Technical Services retirement plans → · Plans in Massachusetts →

Williamsmarston LLC Retirement Plan in the asset neighbourhood

Williamsmarston LLC Retirement PlanWilliamsmarston LLC Retireme…$20MSayres and Associates LLC 401(k) Retirement PlanSayres and Associates LLC 40…$20MFirst Florida Credit Union 401(k) Profit Sharing PlanFirst Florida Credit Union 4…$20MMtl Holdings, LLC Retirement Readiness PlanMtl Holdings, LLC Retirement…$20MAmsco Windows 401(k) Profit Sharing PlanAmsco Windows 401(k) Profit …$20M
End-of-year total assets ($M) among Williamsmarston LLC Retirement Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Massachusetts filing particulars

Total Assets (Beginning of Year)$10M
Net Assets (End of Year)$20M
Net Income$6M
Employer EIN464311251
Plan Effective Date2014-08-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Williamsmarston LLC)

Sponsor-wide plan assets over time

All Williamsmarston LLC plans reported in each filing year

Latest sponsor-wide plan assets
$25M 141.28314674037932% vs 2022
2024 filing year
$5M$10M$15M$20M$25M$30M 202220232024 $10.5M $25.2M ▲ +141.2%
Year Plans Participants Total Assets
2022 1 133 $10M
2023 1 278 $20M
2024 1 193 $25M

Nearby 401(k) Plans in Massachusetts

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Williamsmarston LLC Retirement Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants Williamsmarston LLC Retirement Plan, Total assets ($B): 0.020343431 · Participants: 278Williamsmarston LLC Retirement PlanFidelity Retirement Savings Plan, Total assets ($B): 28.649852331 · Participants: 62289Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 10.556596852 · Participants: 37052Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 6.829912863 · Participants: 14094Massachusetts Institute of Technology Supplemental 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 5.786107181 · Participants: 19881Boston Scientific Corporation 401(k) Retirement Savings PlanPhilips North America 401(k) Plan, Total assets ($B): 5.779286156 · Participants: 19120Philips North America 401(k) Plan
Williamsmarston LLC Retirement Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Williamsmarston LLC Retirement Plan side-by-side with 3 peers →

Williamsmarston LLC Retirement Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Sayres and Associates LLC 401(k) Retirement Plan in DC ($20M); by covered participants it is Centurion Pipeline Company, LLC 401(k) Plan in TX (278 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (278 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Williamsmarston LLC Retirement Plan assets move in 2023? ▼
Williamsmarston LLC Retirement Plan surged - up 94.7% during 2023, from $10M to $20M. Reported net income was $6M.
How have Williamsmarston LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Williamsmarston LLC's sponsor-wide assets grew 141.3%, from $10M to $25M.
Which 401(k) plans are similar in size to Williamsmarston LLC Retirement Plan? ▼
Among 401(k) plans in other states, the closest by assets is Sayres and Associates LLC 401(k) Retirement Plan in DC ($20M, 248 participants).
Which 401(k) plans cover a similar participant headcount to Williamsmarston LLC Retirement Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Centurion Pipeline Company, LLC 401(k) Plan in TX (278 participants, N/A in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 464311251.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.